白色斜方棱柱状结晶或结晶性粉末。以呋喃糖型和吡喃糖型同时存在。糖类中味最甜。极易潮解。水中溶解度:3750 G/L (20°C),溶于乙醇、乙醚、吡啶、乙胺和甲胺,易溶于热丙酮,微溶于冷丙酮。
密度:1.6
熔点:103~105℃
比旋光度[α]20D -92 ° (C=10, H2O)果糖和葡萄糖互为同分异构体。果糖分子中没有醛基,但酮羰基邻位有羟基存在,其水溶液也能发生银镜反应,也能被新制氢氧化铜氧化,生成氧化亚铜红色沉淀,具有还原性,反应结果分子中碳链断裂。
外观Appearance 白色结晶或结晶粉末 |
纯度Purity 98.5%~101.0% |
红外光谱鉴别Infrared spectrometry 和对照品匹配 |
干燥失重Loss on drying <0.5 % (70°C, 4 hrs) (vacuum) |
重金属Heavy metals (as Pb) <10 ppm |
硫酸盐灰分Sulfated ash <0.1 % |
比旋度Specific rotation [a]20/D -89° ~ -94°(c=10, H2O/NH3) |
氯离子Cl < 50 ppm |
硫酸根SO4 < 50 ppm |
溶解度Appearance of solution passes test |
其它糖Foreign sugars passes test |
5-hydroxymethylfurfural passes test |
and related compounds |
品级Grade 美国药典级 |
(USP30) |
鉴别试验IDENTITY PASS |
溶液颜色COLOR OF SOLUTION PASS |
酸度ACIDITY ≤ 0.50 ML |
干燥失重LOSS ON DRYING ≤ 0.5% |
灼烧残渣RESIDUE ON IGNITION ≤ 0.5% |
氯CHLORIDE ≤ 0.018% |
硫酸根SULFATE ≤ 0.025% |
砷ARSENIC ≤ 1 PPM |
钙镁CALCIUM AND MAGNESIUM (AS CALCIUM) ≤ 0.005% |
重金属HEAVY METALS ≤ 5 PPM |
羟基甲基糠醛LIMIT OF HYDROXY- METHYLFURFURAL PASS |
残留溶剂RESIDUAL SOLVENTS MEETS THE REQUIREMENTS |
含量ASSAY 98.0% ~ 102.0% (DRY BASIS) |
品级Grade 欧洲药典级 |
(Ph. Eur., BP) |
比旋光度optical activity [α]20/D −93.5 to −91.0°, c = 10% in H2O |
5-hydroxymethylfurfurol and related substances, |
complies |
acidity or alcalinity, complies |
foreign sugar, complies |
residual solvents, complies |
water ≤0.5% (Karl Fischer) |
ign. residue ≤0.1% (as SO4) |
Melting point 119-122 °C (dec.) |
cation traces Ba:, in accordance |
Pb: ≤0.5 ppm |
suitability in accordance for appearance |
品级Grade 细胞培养专用 |
(cell culture tested) |
外观Appearance 白色粉末 |
红外光谱鉴别Infrared spectrometry Conforms |
纯度Purity ≥99.0% (HPLC) |
水溶解试验solubility in water 合格,200mg/4ML |
比旋光度Specific rotation [a]20/D -87.7°~ -91.3°(C=5, H2O) |
葡萄糖Glucose ≤ 0.05% (ENZYMATIC ANALYSIS) |
细胞培养cell culture test PASS |
昆虫细胞培养insect cell culture test PASS |
生化和微生物研究用。硼酸的测定。
密封阴凉干燥保存。极易吸潮